The station where they they hold a robot demonstration is Mojiko Station in Kita-Kyushu City in Fukuoaka prefecture.
Mr. Suzuki often drinks jars of sake. They are cheap and easy to drink. In Japan there is a strong image of older men often consuming these drinks.
The robot visits the grand-children and shows two messages. To the boy: eat your onions; and to the girl: You're too young to get your own mobile phone yet.